jQuery - Resume form submit after ajax call

Question

Is it possible to stop a form from submitting and then resubmitting the same form from within the success of an ajax call?

At the moment it gets to the success bit b

Answer 1

Solution was quite simple and involved adding and setting async to false in .ajax(). In addition, I have re-worked the code to work of the submit button instead which submits the form when the AJAX passes successfully.

Here is my working code:

$(document).ready(function() {
    var testing = false;
    $('#btn-login').on('click', function() {
        $.ajax({
            url: $('form').attr('action'),
            type: 'post',
            data: $('form').serialize(),
            async: false,
            success: function(data) {
                if (data == 'true')
                {
                    testing = true;
                    $('form').attr('action', 'https://example.com');
                    $('form').submit();
                }
                else
                {
                    alert('Your username/password are incorrect');
                }
            },
            error: function() {
                alert('There has been an error, please alert us immediately');
            }
        });

        return testing;
    });
});

Answer 2

It's no good practice to reselect all form tags throughout your code, what if you have multiple forms on the page? Also you'd better use .on() and .off() with jQuery.

$(document).ready(function() {
    $('form').on('submit', function(e) {
        e.preventDefault();

        // cache the current form so you make sure to only have data from this one
        var form = this,
            $form = $(form);

        $.ajax({
            url: form.action,
            type: form.method,
            data: $form.serialize(),
            success: function(data) {
                if (data == 'true')
                {
                    $form.attr('action', 'http://example.com').off('submit').submit();
                }
                else
                {
                    alert('Your username/password are incorrect');
                }
            },
            error: function() {
                alert('There has been an error, please alert us immediately');
            }
        });
    });
});

Answer 3

In one line you use $('form') to select the form to change its action, but then you use $(this) to try to select that same form. I would guess that this inside the callback function isn't what you expect it to be, and is something other than your form (possibly the window object).

Just chain the calls:

$('form').attr('action', 'http://example.com').unbind('submit').submit();